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Coding
4 years ago
How do you construct a function to analyze a DAG and return the length of its longest path?
Data ScientistMachine Learning Engineer

Cognizant

Scribd

Plaid

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4 years ago
ML Knowledge
4 years ago
Could you elaborate on the differences between L1 and L2 regularization techniques in regression analysis, and when it's recommended to utilize one over the other?
Data Scientist

Cognizant

Grammarly

Transferwise

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4 years ago
Coding
4 years ago
Illustrate how one might write a function to simulate a normal distribution and plot the results.,
Data Scientist

Cognizant

SoFi Logo

SoFi

Qualcomm Logo

Qualcomm

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4 years ago
Statistics
4 years ago
Out of a set of 6 balls with 4 red ones and 2 blue ones, calculate the probability that the two consecutive picks will yield different colored balls.
Data Scientist

Cognizant

Anaplan Logo

Anaplan

HelloFresh Logo

HelloFresh

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4 years ago
Behavioral
4 years ago
Can you walk me through the normal progression of a Data Science project from the initial phase to the final phase?
Data Scientist

Cognizant

Cisco Logo

Cisco

Arm Logo

Arm

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4 years ago
SQL
4 years ago
Find the average value of orders placed by customers located in the United States who have made at least 3 orders in the last month, by performing a join between the "orders" and "customers" tables.
Data Scientist

Cognizant

Rakuten Logo

Rakuten

Citrix Logo

Citrix

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4 years ago
ML Knowledge
4 years ago
What is the essence of the BERT model, and why is it considered effective? Can you also explain its architecture?
Data Scientist

Cognizant

GoDaddy Logo

GoDaddy

Binance Logo

Binance

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4 years ago
Behavioral
5 years ago
Please share an instance where you made a big mistake at work.
Data ScientistData Engineering ManagerUX ResearcherEngineering Manager

Cognizant

Box Logo

Box

Amdocs Logo

Amdocs

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5 years ago

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*All interview questions are submitted by recent Cognizant Data Scientist candidates, labelled and categorized by Prepfully, and then published after being verified by Data Scientists at Cognizant.

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